As for the revised version of the AGI guideline A 80 (08.95), the following 9 basic rules are applied:
- Education:
The user is an engineer with some years of experience. He recognises special cases (difficulties) as such. He knows when additional information is a necessity. He uses guidelines with care: even the authors of guidelines are human beings which may commit errors. They are glad about any comment.
- Clear language:
The text must be kept as simple as possible so as to give the user in industry brief, but usable instructions for his work which are generally acknowledged. Say explicitely, what is not said.
- Technical terms:
Necessary technical terms must be very briefly defined in a glossary. A certain degree of imprecision must be accepted (Feynman). Exact equivalence to other sets of rules and reference works is not absolutely essential.
- Redundancy:
Cross-references must be used, e.g. standards, laws, to avoid repetitions from other guidelines and standards which are mentioned in an index.
- Claims:
The guideline must help prevent claims. Possible difficulties and/or the need for specially trained applicators must be mentioned. Product liability is limited if a product is not used adequately.
- Measurability:
Great importance is attached to measurability of properties. Merely qualitative descriptions are dispensed with unless technically relevant. For all measurable parameters it must be asked whether the measurement makes sense, also with regard to the costs. The problems of characterisation of chemical building materials are assumed to be known.
- Quality systems
(ISO 9001-2000): The guideline must be used as an "associated document" for quality assurance by those who formulate and apply the products as an industrial floor.
- Special procedures
which do not have larger practical significance are grouped together in a separate chapter in italics.
- Presentation
of properties and applications in table form is a very complex task. Since a large amount of work and consultation effort is involved, a table is subject to later revision.